Sudden cardiac arrest (SCA) is a condition in which the heart suddenly and unexpectedly stops beating, usually causing death if it's not treated within minutes. This document offers information that may help prevent death due to sudden cardiac arrest.
Review Date: February 03, 2012
NIH National Heart, Lung, and Blood Institute - NHLBI
Thousands of substances have the potential to affect the heart's electrical system and alter its ability to pump blood through the body. This document describes substances that can cause heart rhythm disorders, including alcohol, tobacco, and substances in the environment and workplace.
Review Date: December 18, 2012
Heart Rhythm Society
A heart attack occurs when blood flow to a section of heart muscle becomes blocked. Learn the symptoms and how acting fast can save your life and limit damage to your heart. If you think you or someone you’re with is having a heart attack, call 9–1–1 right away.
Review Date: May 03, 2012
NIH National Heart, Lung, and Blood Institute - NHLBI
